Which of the following has a DB-9 connector?

________ images can be obtained from the Microsoft website and from a variety of other sources

Fill in the blank(s) with correct word

An advantage of inheritance is that:

a. All methods can be inherited. b. All instance variables can be uniformly accessed by subclasses and superclasses. c. Objects of a subclass can be treated like objects of their superclass. d. None of the above.